Method and Apparatus for Receiving CPRI Data Stream, Method and Apparatus for Receiving Ethernet Frame, and System

2. The method of claim 1, wherein receiving the first CPRI data stream comprises receiving the first CPRI data stream from a first apparatus, wherein the first Ethernet frame comprises a first value, and wherein the first value is based on a first apparatus clock device frequency and a first network apparatus clock device frequency.

3. The method of claim 2, further comprising receiving, through the CPRI, a second CPRI data stream from a second apparatus, and wherein the first Ethernet frame further comprises a second CPRI data stream segment associated with the second CPRI data stream.

4. The method of claim 3, wherein the first Ethernet frame further comprises a second value associated with a second apparatus clock device frequency and the first network apparatus clock device frequency.

5. The method of claim 4, wherein the first Ethernet frame further comprises a first time at which the first network apparatus generates the first CPRI data stream segment.

6. The method of claim 5, wherein the first Ethernet frame further comprises a second time at which the first network apparatus generates the second CPRI data stream segment.

8. The method of claim 6, further comprising generating a first CPRI data segment and a second CPRI data segment, wherein the first CPRI data segment comprises the first CPRI data stream segment and a first CPRI header, wherein the first CPRI header comprises the first value and the first time, wherein the second CPRI data segment comprises the second CPRI data stream segment and a second CPRI header, wherein the second CPRI header comprises the second value and the second time, and wherein generating the first Ethernet frame comprises generating the first Ethernet frame comprising the first CPRI data segment and the second CPRI data segment.

11. The method of claim 10, wherein transmitting the first CPRI data stream segment comprises transmitting the first CPRI data stream segment to the second apparatus at a first time through the CPRI, wherein the first time is associated with a second time at which the second network apparatus obtains the first CPRI data stream segment and a third time at which the first network apparatus generates the first CPRI data stream segment.

15. The first network apparatus of claim 14, wherein the Ethernet frame further comprises a first value, wherein the first value is associated with a first apparatus clock device frequency and a first network apparatus clock device frequency, and wherein the first CPRI data stream is received from a first apparatus.

16. The first network apparatus of claim 15, wherein the receiver is further configured to receive, through the first network apparatus CPRI, a second CPRI data stream from a second apparatus, wherein the processor is further configured to generate a second CPRI data stream segment according to the second CPRI data stream, and wherein the Ethernet frame further comprises the second CPRI data stream segment.

18. The second network apparatus of claim 17, wherein the processor is further configured to determine a first apparatus clock device frequency according to a first value and a second network apparatus clock device frequency, wherein the transmitter is further configured to send the first CPRI data stream segment to a first apparatus using the second network apparatus CPRI, and wherein a rate at which the transmitter sends the first CPRI data stream segment is equal to a product of the first apparatus clock device frequency and a bit width of the second network apparatus CPRI.

19. The second network apparatus of claim 18, wherein the processor is further configured to obtain, from the Ethernet frame, a first time at which the first network apparatus generates the first CPRI data stream segment, and wherein the transmitter is further configured to send, through the second network apparatus CPRI, the first CPRI data stream segment to the first apparatus at a second time associated with the first time.

20. The second network apparatus of claim 19, wherein the processor is further configured to obtain a second CPRI data stream segment from the Ethernet frame, and wherein the transmitter is further configured to send the second CPRI data stream segment to the first apparatus using the second network apparatus CPRI.